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LM26

更新时间: 2024-02-17 12:40:35
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
6页 133K
描述
Adapter Interface Circuit

LM26 技术参数

是否Rohs认证: 符合生命周期:Obsolete
Reach Compliance Code:compliant风险等级:5.6
最大精度(摄氏度):2.2 Cel其他特性:SWITCH AND DIGITAL OUTPUT
主体宽度:0.75 mm主体高度:0.8 mm
主体长度或直径:1.2 mmJESD-609代码:e3
安装特点:SURFACE MOUNT最大工作电流:0.008 mA
最高工作温度:150 °C最低工作温度:-50 °C
封装形状/形式:RECTANGULAR传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT
最大供电电压:5.5 V最小供电电压:1.6 V
表面贴装:YES端子面层:Matte Tin (Sn)
端接类型:SOLDERBase Number Matches:1

LM26 数据手册

 浏览型号LM26的Datasheet PDF文件第2页浏览型号LM26的Datasheet PDF文件第3页浏览型号LM26的Datasheet PDF文件第4页浏览型号LM26的Datasheet PDF文件第5页浏览型号LM26的Datasheet PDF文件第6页 
April 2001  
LM2601  
Adapter Interface Circuit  
General Description  
n LM2601 shuts down automatically when adapter is  
removed  
The Adapter Interface Circuit (AIC) is used to sense the  
presence of an external power source for a portable com-  
puter. It notifies the computer if a source is present and  
indicates if the source is appropriate for charging battery  
packs inside the computer. The AIC also senses an adapter  
current and its direction. AIC isolates the adapter and signals  
the computer when peak current threshold is exceeded.  
n Low leakage current from battery when not powered  
n Drives P-channel FETs, no Schottky diodes are required  
n No reverse inrush current from battery into the adapter  
output capacitance  
n Allows for battery capacity gas-gauge calibration under  
system software/firmware control  
n Adapter over current threshold programmable with  
external resistors  
n Wide input range: 5V - 24V  
LM2601 drives P-channel FETs. No high current rated  
Schottky diode is required to implement an adapter switcho-  
ver circuit. This significantly decreases additional heat dissi-  
pation during simultaneous fast battery charging while run-  
ning a computer, particularly in Maximum Performance  
mode of operation  
n Available in TSSOP-14 package  
Applications  
n Portable Computers  
Features  
n Detects an AC-DC adapter suitable for battery charging  
or an airplane or car power line adapter that should not  
be used for battery charging  
n Portable IAs (Internet Appliances, Information  
Appliances)  
n Other Battery Powered Devices  
n Allows the implementation of intelligent switchover  
circuits for portable systems  
Block Diagram  
10130901  
© 2001 National Semiconductor Corporation  
DS101309  
www.national.com  

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